English verb conjugation
MUST ZIGZAG

Regular verb: zigzag - zigzagged - zigzagged

Affirmation

Simple form	V-ing form
I must zigzag you must zigzag he must zigzag we must zigzag you must zigzag they must zigzag	I must be zigzagging you must be zigzagging he must be zigzagging we must be zigzagging you must be zigzagging they must be zigzagging
Perfect	V-ing perfect
I must have zigzagged you must have zigzagged he must have zigzagged we must have zigzagged you must have zigzagged they must have zigzagged	I must have been zigzagging you must have been zigzagging he must have been zigzagging we must have been zigzagging you must have been zigzagging they must have been zigzagging

Negation

Simple form	V-ing form
I must not zigzag you must not zigzag he must not zigzag we must not zigzag you must not zigzag they must not zigzag	I must not be zigzagging you must not be zigzagging he must not be zigzagging we must not be zigzagging you must not be zigzagging they must not be zigzagging
Perfect	V-ing perfect
I must not have zigzagged you must not have zigzagged he must not have zigzagged we must not have zigzagged you must not have zigzagged they must not have zigzagged	I must not have been zigzagging you must not have been zigzagging he must not have been zigzagging we must not have been zigzagging you must not have been zigzagging they must not have been zigzagging

Interrogative form

Simple form	V-ing form
must I zigzag? must you zigzag? must he zigzag? must we zigzag? must you zigzag? must they zigzag?	must I be zigzagging? must you be zigzagging? must he be zigzagging? must we be zigzagging? must you be zigzagging? must they be zigzagging?
Perfect	V-ing perfect
must I have zigzagged? must you have zigzagged? must he have zigzagged? must we have zigzagged? must you have zigzagged? must they have zigzagged?	must I have been zigzagging? must you have been zigzagging? must he have been zigzagging? must we have been zigzagging? must you have been zigzagging? must they have been zigzagging?

Interro-negative form

Simple form	V-ing form
must I not zigzag? must you not zigzag? must he not zigzag? must we not zigzag? must you not zigzag? must they not zigzag?	must I not be zigzagging? must you not be zigzagging? must he not be zigzagging? must we not be zigzagging? must you not be zigzagging? must they not be zigzagging?
Perfect	V-ing perfect
must I not have zigzagged? must you not have zigzagged? must he not have zigzagged? must we not have zigzagged? must you not have zigzagged? must they not have zigzagged?	must I not have been zigzagging? must you not have been zigzagging? must he not have been zigzagging? must we not have been zigzagging? must you not have been zigzagging? must they not have been zigzagging?